| DOI | Trouver le DOI : https://doi.org/10.1016/j.mri.2009.05.018 |
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| Auteur | Rechercher : Blasiak, Barbara1; Rechercher : Volotovskyy, Vyacheslav1; Rechercher : Deng, Charlie1; Rechercher : Tomanek, Boguslaw1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut du biodiagnostic du CNRC
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| Format | Texte, Article |
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| Sujet | MRI; RF coil; Solenoidalcoil; Low-field MRI; B1field; SNR |
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| Résumé | Applications of low-field magnetic resonance imaging (MRI) systems (<0.3 T) are limited due to the signal-to-noise ratio (SNR) being lower than that provided by systems based on superconductive magnets (> or = 1.5 T). Therefore, the design of radiofrequency (RF) coils for low-field MRI requires careful consideration as significant gains in SNR can be achieved with the proper design of the RF coil. This article describes an analytical method for the optimization of solenoidal coils. Coil and sample losses are analyzed to provide maximum SNR and optimum B(1) field homogeneity. The calculations are performed for solenoidal coils optimized for the human head at 0.2 T, but the method could also be applied to any solenoidal coil for imaging other anatomical regions at low field. Several coils were constructed to compare experimental and theoretical results. A head magnetic resonance image obtained at 0.2 T with the optimum design is presented. |
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| Date de publication | 2009-06-25 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 20001144 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 544636c6-cac8-41b2-b642-160af0a36d58 |
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| Enregistrement créé | 2012-05-25 |
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| Enregistrement modifié | 2020-04-16 |
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